Abstract:The food consumption, growth and activity of digestive enzymes of Catantops pinguis (Stl) (Orthoptera: Catantopidae) fed on different diets were investigated under three temperatures(10,25,35℃). The temperature affected the food consumption and relative growth rate extreme remarkably, performed as 35℃>25℃>10℃, the temperature affected the net growth with the same trend yet there was no statistical difference among three treated temperatures. The temperature affected the protease activity extreme remarkably, the general trend was higher temperature had higher activity, but for each enzyme there was different performance. The diet affected the food consumption extreme significantly, which means locust fed more wheat seedling than tea leaves, even the approximate digestibility on wheat seedling was just higher than that on tea leaves. The net growth when fed on wheat seedling were higher than that fed on tea leaves under three treated temperatures, although there was no significant difference, but the relative growth rate when fed on wheat seedling was significantly higher than that fed on tea leaves, show that diet affected the relative growth rate significantly. The diet affected the protease activity exceeding remarkably, while the protease activity fed on wheat seedling was higher than that fed on tea leaves remarkably, except chymotrypsin.